Several mechanisms have been proposed to control the spatio-temporal chaos.
An analytical and numerical insight is given for the control of a vector f
ield in an extended system modeled by a vector complex Ginzburg-Landau equa
tion (VCGLE). We show how a non-linear diffraction term stabilizes unstable
polarized standing waves and linearly polarized traveling waves in a chaot
ic scenery. (C) 2001 Elsevier Science B.V, All rights reserved.